From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
The effects of variation in the platinum point gap.
| Identifier | ExFiles\Box 48\2\ Scan414 | |
| Date | 29th March 1926 | |
| EFC {E. Fowler Clarke - Electrical Engineer} 1/T29.3.26. -8- Contd. that a variation of +- .004" in the platinum point gap, would cause a variation of perhaps +- 10° in the instant of make, the actual instant of which within these limits is not of serious consequence, if it is, as on our suggestions, already taking place in a time region where the rate of change of flux is for the moment small. EFC. {E. Fowler Clarke - Electrical Engineer} | ||